免疫接种是预防牛布鲁氏菌病的重要手段。
事实上,黄石野牛大约有一半遭受了布鲁氏菌病——一种欧洲牛群带到美国的细菌疾病——可能引起牛流产。
In fact, about half of Yellowstone's bison have been exposed to brucellosis, a bacterial disease that came to North America with European cattle that may cause cattle to miscarry.
应用推荐